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Finding the Fourth Proportional to 35,344,917.20, 53,017,375.80 and 18,338,805.20

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Solution

The fourth proportional to 35,344,917.20, 53,017,375.80 and 18,338,805.20 is: 27,508,207.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,344,917.20 : 53,017,375.80 = 18,338,805.20 : x
  2. Step 2: Convert to fraction form
    35,344,917.20/53,017,375.80 = 18,338,805.20/x
  3. Step 3: Cross multiply
    35,344,917.20x = 53,017,375.80 × 18,338,805.20
  4. Step 4: Simplify right side
    35,344,917.20x = 972,275,327,011,394.12
  5. Step 5: Solve for x
    x = 972,275,327,011,394.12/35,344,917.20
  6. Step 6: Final answer
    x = 27,508,207.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.